MAKING
1) In a pan, cook the macaroni as per the package instructions.
2) Drain the macaroni, rinse under cold running water, then drain thoroughly and keep aside.
3) In another pan, cook the green beans in boiling salted water for 20 to 25 minutes or until just tender.
4) Drain the green beans, rinse under cold running water, then drain thoroughly and keep aside.
5) In a large bowl, mix the cooked pasta, green beans, beef, onion, carrot and radishes together.
6) In a bowl, mix the mayonnaise, yogurt, vinegar, garlic, Italian herb seasoning, mustard and 1/4 teaspoon salt together for the dressing.
7) Pour the dressing over the pasta mixture and toss until thoroughly coated.
8) Cover the bowl and refrigerate for 4 to 24 hours.
9) Stir in milk, if required for a creamy consistency, just before serving.